JP6868538B2 - Railroad vehicle coupling device - Google Patents

Description

The present invention relates to a joint member for connecting a coupler and a shock absorber related to a connection between railway vehicles.

Each railroad vehicle is connected by a coupler to form a train, and the coupler connects the railroad vehicles via a shock absorber in order to mitigate the impact generated when the train is running or when the railroad vehicle is connected. It has become. In consideration of the vertical movement and turning of the railway vehicle, the coupler and the shock absorber have a structure in which the coupler and the shock absorber are smoothly swung in the vertical and horizontal directions.

For example, Patent Document 1 describes a joint member that connects a coupler and a shock absorber. In this joint member, a predetermined part of the joint member is inserted into the bifurcation of the coupling end of the coupler and is connected by a horizontal pin, and another part of the joint member is inserted into the bifurcation of the coupling end of the shock absorber. Since it is connected by a vertical pin, the coupler is said to be swingably connected to the shock absorber in both the horizontal and vertical directions. A joint similar to this joint member is also described in Patent Document 2, and the coupler is connected to a joint located at the front end of the rubber shock absorber via a coupling pin, and the joint is a frame of the rubber shock absorber. It is said that it is connected to the frame with vertical pins. Such a joint member or a joint has been generally used conventionally.

On the other hand, the vertical movement and turning of the railroad vehicle are not necessarily planar movements, and the coupler and the shock absorber also swing around the axis. Further, in a vehicle for tilting a vehicle, a structure that allows swinging around an axis is required at a joint portion between a coupler and a shock absorber. Therefore, a connection structure using a spherical slide bearing has been proposed so as to be able to cope with this swing around the axis. For example, in Patent Document 3, in a railroad vehicle coupling device in which a coupler main body is attached to a vehicle via a shock absorber, positive and negative inputs act on the shock absorber frame to absorb acceleration during acceleration and deceleration of the railroad vehicle. A shock absorber frame provided with a shock absorber, and a single spherical plain bearing is held by a holding part of the shock absorber frame and a holding part of the coupler body so as not to be able to move back and forth, and the shock absorber frame is in an engageable crossed state. A coupling device for railroad vehicles has been proposed in which a holding portion and a holding portion of a coupler main body are connected so as to be capable of relative rotation within a predetermined angle range until they come into contact with each other. Since this railroad vehicle coupling device is held so that it cannot move back and forth by the holding part of the shock absorber frame and the holding part of the coupler body, it is not easily damaged even if it collides with other members, and has excellent durability. It is said that.

Patent Document 4 is a connecting device installed on a Shinkansen vehicle, which includes a joint for connecting the connecting device and the shock absorber with a connecting pin, and the shock absorber frame is a front portion having a front end wall opened in an inverted conical shape. The inner surface is a semi-concave spherical surface, and the inner surface following the semi-concave spherical surface is formed into a cylindrical surface, while the joint is an outer circumference of a short cylinder into which the tail portion of a connector inserted through the opening of the shock absorber frame is inserted. The surface is a convex spherical surface that engages with the semi-concave spherical surface of the shock absorber frame, and a through hole is provided in the direction perpendicular to the axis of the short cylinder. An extraction hole for the connecting pin is provided at a position coaxial with the connecting pin in the assembled state in which the connecting pin is inserted into the through hole of the joint into which the portion is inserted, at a position rotated by a predetermined angle in the circumferential direction from the assembled state. A connecting device for Shinkansen vehicles has been proposed. This Shinkansen vehicle coupling device has a vehicle body part peculiar to the front side, and there is no space for attaching or detaching the coupling device as a unit. It is said that it can be installed.

Japanese Unexamined Patent Publication No. 2009-298386 Japanese Unexamined Patent Publication No. 2008-1186 Japanese Patent Application Laid-Open No. 2005-219685 Japanese Unexamined Patent Publication No. 2012-66721

The connecting structure using a joint member (joint) described in Patent Document 1 or 2 is a coupler or shock absorber that connects a joint member that is easy to handle and machine and its horizontal pin (horizontal axis) or vertical pin (vertical axis). There is an advantage that it is enough to process the holes to be attached to. On the other hand, for smooth operation of the train, it is preferable that the coupler and the shock absorber are connected by the vehicle coupling device described in Patent Document 3 or 4, which can swing up and down, left and right, and around the axis. .. However, this vehicle coupling device has a problem that it must be processed to require precision for mounting a spherical slide bearing on a heavy shock absorber or a coupler.

In view of the problem of the conventional coupling structure of the coupler and the shock absorber, the present invention is a coupling structure using a joint member which is generally used to connect the coupler and the shock absorber. It is an object of the present invention to provide a railroad vehicle coupling device using a joint member capable of swinging up and down, left and right, and around an axis of a device and a shock absorber.

The railroad vehicle coupling device according to the present invention is a railroad vehicle coupling device that connects the coupler main body of the coupler and the shock absorber frame of the shock absorber via a contact member, and the contact member is provided behind the coupler body. A joint body having a housing portion for accommodating the spherical plain bearing and an overhang portion provided in the front and accommodated in the tail end portion of the coupler body, a spherical plain bearing accommodated in the housing portion, and a spherical slide thereof. A vertical axis that penetrates the inner ring of the bearing and is press-fitted into the shock absorber frame, and a horizontal axis that penetrates the contact body in a direction separated from the vertical axis and is mounted on the tail end of the coupler body. It has a shaft, and the coupler main body is supported by the overhanging portion and the horizontal shaft, and is integrated with the contact main body so as to swing around the spherical plain bearing.

In the above invention, the vertical axis is swingably mounted on the joint body and the coupler body.

The overhanging portion may be provided with a cut through which the mounting parts of the coupler are inserted.

The railroad vehicle coupling device according to the present invention has a coupling structure with a joint member that is easy to handle and machine, and can swing the coupler and shock absorber up and down, left and right, and around an axis. Therefore, the train can be operated smoothly. Further, since the coupler or shock absorber only needs to be bored to mount the horizontal axis or the vertical axis, a commonly used coupler or shock absorber can be used. Further, the conventional coupling structure of the coupler and the shock absorber by the joint member can be changed to a coupling structure capable of swinging up and down, left and right, and around the axis by using this joint member.

It is a schematic diagram which shows the part which connected the coupler and the shock absorber by the joint member which concerns on this invention. It is a schematic diagram which shows another Example of the overhanging part of a joint member.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows a state in which a coupler and a shock absorber are connected by a joint member according to the present invention. As shown in FIG. 1, the joint member 10 is connected to the coupler 20 by a horizontal shaft 18 mounted on the coupler main body 21, and is connected to the shock absorber 30 by a shock absorber frame 31 and a vertical shaft 19. Has been done. That is, the coupler 20 and the shock absorber 30 are connected via the joint member 10. The connecting member 10 includes a joint body 11, a spherical plain bearing 15, a horizontal axis 18, and a vertical axis 19.

The joint body 11 of the joint member 10 has a housing portion 12 that accommodates the spherical slide bearing 15 and an overhang portion 13 that is accommodated in the tail end cavity portion 23 of the coupler body 21. The spherical plain bearing 15 has an inner ring 16 and an outer ring 17, and the housing portion 12 is machined to an accuracy in which the outer ring 17 is mounted in a predetermined fitting. As shown in FIG. 1 (b), a hole 14 through which the horizontal axis 18 penetrates is provided in a substantially central portion of the joint body 11. The hole 14 can be a drilled hole, and the connecting member 10 can swing around the horizontal axis 18. The horizontal shaft 18 is mounted in the hole 24 provided at the tail end of the coupler main body 21. This hole 24 can also be a drilled hole, and the coupler 20 can swing around the horizontal axis 18. The horizontal shaft 18 is held and fixed to the coupler main body 21 by a split cotter for retaining the retaining ring and a C-shaped retaining ring.

The joint member 10 is basically integrated with the coupler 20 and can swing up and down, left and right, and around the axis of the coupler. That is, as shown in FIG. 1 (b), the joint main body 11 is attached to the machined portion of the tail end of the coupler main body 21 in a state where there is no gap between the left and right (upper and lower in the drawing). However, as shown in FIG. 1A, the overhanging portion 13 of the joint body 11 is not in contact with the coupler body 21 and has a slight gap. This is in consideration of the case where the coupler main body 21 is manufactured by a casting method, so that the overhanging portion 13 of the joint member 10 can be accommodated in the tail end cavity portion 23 without any machining. .. As a result, the coupler 20 is supported and integrated with the overhanging portion 13 of the joint member 10 by the horizontal shaft 18, and is vertically and horizontally with respect to the shock absorber 30 and around the axis of the coupler 20 and the shock absorber 30. It can be made swingable. Then, in combination with the machining accuracy of the hole 24, a commonly used coupler can be connected to the shock absorber 30 via the main joint member 10.

The contact member 10 is connected to the shock absorber 30 via a spherical plain bearing 15. Therefore, the coupler 20 in which the joint member 10 is integrated has a structure that can swing up and down, left and right, and around the axis of the coupler and the shock absorber with respect to the shock absorber 30. As the spherical slide bearing 15, a commercially available one can be used. The vertical axis 19 penetrating the inner ring 16 is fitted with the inner ring 16 with a predetermined accuracy. Then, the vertical axis 19 is press-fitted into the shock absorber frame 31 so as to be integrated with the shock absorber 30, and is fixed to the shock absorber 30. The fixing of the vertical axis 19 is not limited to the press-fitting method, and may be another method that can be integrally fixed with the shock absorber frame 31.

The joint member 10 according to the present invention has been described above. The coupling member 10 can swing the coupler 20 and the shock absorber 30 up and down, left and right, and around the axis of the coupler 20 and the shock absorber 30. Further, the joint member 10 can be connected even with a commonly used coupler or shock absorber. For example, when the main contact member 10 is used for a close-fitting coupler that connects the couplers to each other with a commonly used coupling lock, a spring is used to support the coupling lock, and the spring and the joint member are used. In order to prevent the buffering of 10, as shown in FIG. 2, a notch 11a can be provided in the overhanging portion 13 of the joint body 11. The joint member 10 may have a structure that is supported by the overhanging portion 13 of the joint body 11 and the horizontal shaft 18 and is integrated with the coupler 20.

10 Joint member
11 Joint body
12 Housing
13 Overhang
14 holes
15 Spherical plain bearing
16 inner ring
17 Paddlewheel
18 horizontal axis
19 vertical axis
20 coupler
21 Coupler body
23 Tail end cavity
24 holes
30 shock absorber
31 shock absorber frame

Claims (3)

It is a railroad vehicle coupling device that connects the coupler body of the coupler and the shock absorber frame of the shock absorber via a joint member.
The joint member includes a joint body having a housing portion for accommodating a spherical slide bearing provided behind the joint member and an overhanging portion provided in the front for accommodating the tail end portion of the coupler main body, and the joint member. The spherical slide bearing, the vertical axis that penetrates the inner ring of the spherical slide bearing and is press-fitted into the shock absorber frame, and the connector that penetrates the joint body in a direction that is separated from the vertical axis and orthogonal to the vertical axis. It has a horizontal axis that is attached to the tail end of the main body.
The coupler main body is a railroad vehicle coupling device that is supported by the overhanging portion and a horizontal axis and is integrated with the joint main body so as to swing around the spherical slide bearing. The railway vehicle coupling device according to claim 1, wherein the vertical axis is swingably mounted on the joint body and the coupler body. The railway vehicle coupling device according to claim 1 or 2, wherein the overhanging portion is provided with a cut through which a mounting component of the coupler is inserted.

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